code: def try_import_tfp(error: bool = False):
      """Tries importing tfp and returns the module (or None).
  
      Args:
          error: Whether to raise an error if tfp cannot be imported.
  
      Returns:
          The tfp module.
  
      Raises:
          ImportError: If error=True and tfp is not installed.
      """
      if "RLLIB_TEST_NO_TF_IMPORT" in os.environ:
          logger.warning(
              "Not importing TensorFlow Probability for test purposes."
          )
          return None
  
      try:
          import tensorflow_probability as tfp
  
          return tfp
      except ImportError as e:
          if error:
              raise e
          return None
  
imports: import logging
  import numpy
  import os
  import sys
  from typing import Any, Optional
  from ray.rllib.utils.annotations import DeveloperAPI, PublicAPI
  from ray.rllib.utils.deprecation import Deprecated
  from ray.rllib.utils.typing import TensorShape, TensorType
label_desc: Use image node_id 4 for calling a global function with example usage: try_import_tfp(error) and returns: None, tfp, None